twitter4j - setSince and setUntil don't work - twitter4j

Question

I'm having problem to filter tweets by specifics dates, using setUntil come no tweets, using setSince come recently tweets.. The code is following and after that the output result..
public void readTweetFromKeyword(String keywordString) throws TwitterException
{
twitter4j.Query query =new twitter4j.Query("#clt20");
QueryResult result;
query.setSince("2014-12-12");
int cont = 0;
result = twitter.search(query);
for (Status status : result.getTweets() )
{
System.out.print("original "+status.getId());
System.out.println("\t\tdata "+status.getCreatedAt());
if(!status.getText().substring(0, 2).equals("RT")){
System.out.println(status.getText());
cont++;
}
}
System.out.println(result.getTweets().size());
System.out.println("cont = "+cont);
return;
}
CONSOLE:
original 619433499116896256 data Fri Jul 10 06:10:29 GMT-03:00 2015
If the #BCCI is looking for an alternative to #Clt20, then how about a
league of teams consisting of only Indian players ?
original 619408117495939072 data Fri Jul 10 04:29:37 GMT-03:00 2015
#TesT, #ODI, #T20I, #IPL, #CLT20 Live record, score, history shedule ke lia, Follow #PTV_SpOrtsOne snt to 40404.
original 619330143258050560 data Thu Jul 09 23:19:47 GMT-03:00 2015
Need 66 From 6 Balls. Kinda Impossible #clt20
original 619301555532120065 data Thu Jul 09 21:26:11 GMT-03:00 2015
Kamran Akmals feet are stuck #soshit #CLT20
original 619095093962608640 data Thu Jul 09 07:45:47 GMT-03:00 2015
original 619095079983017984 data Thu Jul 09 07:45:43 GMT-03:00 2015
original 619095051524665344 data Thu Jul 09 07:45:37 GMT-03:00 2015
original 619095028304973825 data Thu Jul 09 07:45:31 GMT-03:00 2015
original 619094989943902209 data Thu Jul 09 07:45:22 GMT-03:00 2015
original 619094910516400129 data Thu Jul 09 07:45:03 GMT-03:00 2015
original 619094893441363969 data Thu Jul 09 07:44:59 GMT-03:00 2015
original 619035151578722304 data Thu Jul 09 03:47:35 GMT-03:00 2015
#abhisek_taneja Games r played in Himachal Pradesh every year if u go
through the schedule of #IPL & #CLT20 properly
original 618914815730290688 data Wed Jul 08 19:49:25 GMT-03:00 2015
original 618908444939186177 data Wed Jul 08 19:24:06 GMT-03:00 2015
original 618862474687705088 data Wed Jul 08 16:21:26 GMT-03:00 2015
We as #T20 follower , #clt20 should be oganized #CLT20
15 cont = 6
Thanks a lot!!

Answer 1

If you set an until date kepp in mind this from the documentation
Returns tweets generated before the given date. Date should be
formatted as YYYY-MM-DD. Keep in mind that the search index may not go
back as far as the date you specify here.
And this too
Before getting involved, it’s important to know that the Search API is
focused on relevance and not completeness. This means that some Tweets
and users may be missing from search results. If you want to match for
completeness you should consider using a Streaming API instead.
So, if you set an until date too old you could get zero tweets, in the other hand if you set a since date too old you could get only tweets from the few past days as you get in the console.